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The mean of first five even natural numbers is:
Calculate the mean of the following discrete data: x=10, f=2; x=20, f=3.
If the mean of 4, 7, x, 9 is 7, find the value of x.
The mean marks of 20 students is 45 and the mean marks of another 30 students is 50. Find the combined mean.
Find the median for the frequency distribution: Marks: 10, 20, 30; Frequency: 2, 5, 3.
In a class, the ratio of boys to girls is 3:2. If the mean weight of boys is 50kg and girls is 40kg, the mean weight of the whole class is:
If the median of the data arranged in ascending order: 10, 12, 14, x-1, x+1, 20, 22, 25 is 17, find x.
Find the lower quartile (Q1) for the data: 15, 20, 25, 30, 35, 40, 45, 50, 55, 60.
The mean of 5 numbers is 18. If one number is excluded, their mean becomes 16. The excluded number is:
What is the relation between mean, median, and mode for a moderately skewed distribution?
For a distribution, if Σfx = 400 and Σf = 20, what is the mean?
In a pie chart, if the expenditure on education is Rs 5000 out of a total budget of Rs 20000, what is the angle of the sector for education?
Find the value of k if the mean of 2, 4, 6, k, 10 is 6.
If Q1 = 15 and Q3 = 35, what is the interquartile range?
The mean of 100 observations is 50. If one observation 50 is replaced by 150, what is the new mean?
If the sum of deviations of a set of values from 25 is 0, what is the mean of the values?
In a frequency distribution table, if the median class is 20-30, what is the lower limit 'L' used in the median formula?
Convert 54 degrees of a pie chart into percentage.
If the mean of 6, 8, 5, 7, x and 4 is 7, then x is:
In a grouped frequency distribution, the class with the highest frequency is called: